<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb>
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
            <!-- 搜索框内容 -->
            <el-row>
                <el-col :span="6" class="searchInput">
                    <el-input placeholder="请输入内容"
                     v-model="goodParameters.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="3">
                    <el-button type="primary" @click="addCommodityClick">添加商品</el-button>
                </el-col>
            </el-row>
            <!-- 商品表单内容 -->
            <el-table :data="goodsList" border stripe style="width: 100%">
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="goods_name" label="商品名称" ></el-table-column>
                <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
                <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
                <el-table-column prop="add_time" label="创建时间" width="140px">
                    <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <!-- 编辑 -->
                        <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
                        <!-- 删除 -->
                        <el-button size="mini" type="danger" icon="el-icon-delete" @click="delGoodsClick(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页功能 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
             :current-page="this.goodParameters.pagenum" :page-sizes="[5, 10, 20, 30]"
             :page-size="this.goodParameters.pagesize" layout="total, sizes, prev, pager, next, jumper"
             :total="this.total">
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  data () {
    return {
      goodParameters: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      total: 0,
      goodsList: []
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品数据
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.goodParameters })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(this.goodsList)
      console.log(this.total)
    },
    // pageSize 改变时会触发
    handleSizeChange (newSize) {
      this.goodParameters.pagesize = newSize
      this.getGoodsList()
    },
    // currentPage 改变时会触发
    handleCurrentChange (newPage) {
      this.goodParameters.pagenum = newPage
      this.getGoodsList()
    },
    // 点击商品删除
    async delGoodsClick (id) {
      const confirmMessage = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => error)
      if (confirmMessage !== 'confirm') {
        return this.$message.info('取消删除')
      }
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败')
      }
      this.$message.success('删除商品成功')
      this.getGoodsList()
    },
    // 添加商品
    addCommodityClick () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
.searchInput{
    padding-right: 15px;
}
</style>
